X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Frenderbuffer.cpp;h=e86a97a50b63393d3220c02dd96e9d0e5037b85c;hb=cc7454c7f32ee8a8ff5d67c7a530d843bb68448c;hp=5098362261e45743d396c81ea9bc5b9878d3c9ae;hpb=96fb9a0237a7c3f6fc23406ce50cd1c6fe484111;p=libs%2Fgl.git

diff --git a/source/renderbuffer.cpp b/source/renderbuffer.cpp
index 50983622..e86a97a5 100644
--- a/source/renderbuffer.cpp
+++ b/source/renderbuffer.cpp
@@ -1,8 +1,11 @@
 #include <msp/gl/extensions/arb_direct_state_access.h>
 #include <msp/gl/extensions/ext_framebuffer_multisample.h>
 #include <msp/gl/extensions/ext_framebuffer_object.h>
+#include "misc.h"
 #include "renderbuffer.h"
 
+using namespace std;
+
 namespace Msp {
 namespace GL {
 
@@ -21,20 +24,8 @@ Renderbuffer::~Renderbuffer()
 	glDeleteRenderbuffers(1, &id);
 }
 
-PixelFormat Renderbuffer::normalize_format(PixelFormat fmt)
-{
-	if(!get_component_size(fmt) && MSP_sized_internal_formats)
-	{
-		unsigned size = (fmt==DEPTH_COMPONENT ? get_gl_api()==OPENGL_ES2 ? 2 : 4 : 1);
-		return get_sized_pixelformat(fmt, size);
-	}
-
-	return fmt;
-}
-
 void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 {
-	fmt = normalize_format(fmt);
 	require_pixelformat(fmt);
 	width = wd;
 	height = ht;
@@ -47,10 +38,21 @@ void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
 	}
 }
 
+unsigned Renderbuffer::get_max_samples()
+{
+	static unsigned max_samples = (EXT_framebuffer_multisample ? get_i(GL_MAX_SAMPLES) : 0);
+	return max_samples;
+}
+
 void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned wd, unsigned ht)
 {
+	if(!samples)
+		return storage(fmt, wd, ht);
+
 	static Require _req(EXT_framebuffer_multisample);
-	fmt = normalize_format(fmt);
+	if(samples>get_max_samples())
+		throw out_of_range("Renderbuffer::storage_multisample");
+
 	require_pixelformat(fmt);
 
 	width = wd;